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fft_execute.cpp
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Heinz-Bernd Eggenstein authored
added file comment headers to express that this is now derived work and not the original Apple source code The original Apple comment headers with (c) and license info are retained
Heinz-Bernd Eggenstein authoredadded file comment headers to express that this is now derived work and not the original Apple source code The original Apple comment headers with (c) and license info are retained
generate_failures.py 2.85 KiB
import pyfstat
import numpy as np
import os
import time
outdir = 'data'
label = 'run_failures'
data_label = '{}_data'.format(label)
results_file_name = '{}/MCResults_failures.txt'.format(outdir)
# Properties of the GW data
sqrtSX = 2e-23
tstart = 1000000000
Tspan = 100*86400
tend = tstart + Tspan
# Fixed properties of the signal
F0_center = 30
F1_center = 1e-10
F2 = 0
tref = .5*(tstart+tend)
VF0 = VF1 = 100
DeltaF0 = VF0 * np.sqrt(3)/(np.pi*Tspan)
DeltaF1 = VF1 * np.sqrt(45/4.)/(np.pi*Tspan**2)
DeltaAlpha = 0.02
DeltaDelta = 0.02
depths = [140]
nsteps = 50
run_setup = [((nsteps, 0), 20, False),
((nsteps, 0), 11, False),
((nsteps, 0), 6, False),
((nsteps, 0), 3, False),
((nsteps, nsteps), 1, False)]
for depth in depths:
h0 = sqrtSX / float(depth)
F0 = F0_center + np.random.uniform(-0.5, 0.5)*DeltaF0
F1 = F1_center + np.random.uniform(-0.5, 0.5)*DeltaF1
Alpha_center = np.random.uniform(0, 2*np.pi)
Delta_center = np.arccos(2*np.random.uniform(0, 1)-1)-np.pi/2
Alpha = Alpha_center + np.random.uniform(-0.5, 0.5)*DeltaAlpha
Delta = Delta_center + np.random.uniform(-0.5, 0.5)*DeltaDelta
psi = np.random.uniform(-np.pi/4, np.pi/4)
phi = np.random.uniform(0, 2*np.pi)
cosi = np.random.uniform(-1, 1)
data = pyfstat.Writer(
label=data_label, outdir=outdir, tref=tref,
tstart=tstart, F0=F0, F1=F1, F2=F2, duration=Tspan, Alpha=Alpha,
Delta=Delta, h0=h0, sqrtSX=sqrtSX, psi=psi, phi=phi, cosi=cosi,
detector='H1,L1')
data.make_data()
predicted_twoF = data.predict_fstat()
startTime = time.time()
theta_prior = {'F0': {'type': 'unif',
'lower': F0_center-DeltaF0,
'upper': F0_center+DeltaF0},
'F1': {'type': 'unif',
'lower': F1_center-DeltaF1,
'upper': F1_center+DeltaF1},
'F2': F2,
'Alpha': {'type': 'unif',
'lower': Alpha_center-DeltaAlpha,
'upper': Alpha_center+DeltaAlpha},
'Delta': {'type': 'unif',
'lower': Delta_center-DeltaDelta,
'upper': Delta_center+DeltaDelta},
}
ntemps = 2
log10temperature_min = -1
nwalkers = 100
mcmc = pyfstat.MCMCFollowUpSearch(
label=label, outdir=outdir,
sftfilepath='{}/*{}*sft'.format(outdir, data_label),
theta_prior=theta_prior,
tref=tref, minStartTime=tstart, maxStartTime=tend,
nwalkers=nwalkers, ntemps=ntemps,
log10temperature_min=log10temperature_min)
mcmc.run(run_setup=run_setup, create_plots=True, log_table=False,
gen_tex_table=False)
d, maxtwoF = mcmc.get_max_twoF()
print 'MaxtwoF = {}'.format(maxtwoF)